An electronic apparatus is disclosed, which includes an input interface configured to receive an audio signal, a processor configured to process the received audio signal, and an output interface configured to output the processed audio signal, in which the processor is configured to obtain a scale of a first octave by applying a filter bank to the audio signal based on a sampling frequency of the audio signal; down-sample the audio signal; and obtain a scale of a second octave lower than the first octave by applying the filter bank to the down-sampled signal

A method of operating a hearing aid system (400) based on a classification of the current sound environment, which includes a measure of a beat probability and a hearing aid system for carrying out such a method.

An electronic device comprising a processing unit arranged to determine an estimation signal (y(k)) based on an input signal (x(k)) and based on a non-stationary reference signal (s.sub.0(k)).

An apparatus, system, and method for an electronic handheld musical instrument that generates electronic signals for processing by a processor-based module to generate musical sounds adapted to replicate non-electronic traditional hand percussion and other handheld instruments, is provided. A piezoelectric-based trigger is secured in an enclosed volume or enclosure formed in the electronic handheld musical instrument. When manipulated by a musician in a normal fashion, freely moving beads float or travel within the enclosure of the electronic handheld musical instrument and strike against a sensitive face of the piezoelectric transducer device to create a desired sound effect.

There are disclosed automatic mixers and methods for creating a surround audio mix. A set of rules may be stored in a rule base. A rule engine may select a subset of the set of rules based, at least in part, on metadata associated with a plurality of stems. A mixing matrix may mix the plurality of stems in accordance with the selected subset of rules to provide three or more output channels.

A method of operating a hearing aid system (400) based on a classification of the current sound environment, which includes a measure of a beat probability and a hearing aid system for carrying out such a method.

A tone control system for string instruments includes at least one capacitive filter selected for coupling to at least one of a pair of series coupled pickup transducer sensors. The tone control system employs a potentiometer or switch to selectively enable the capacitive filter in different filtering configurations. When selectively not enabled, the capacitive filter is connected to neither of the pair of pickup transducer sensors. The capacitive filter may include a pair of filter capacitors for individually being selectively enabled as a low pass filter for one of the pair of pickup transducer sensors and a high frequency bypass circuit path for the other of the pair of pickup transducer sensors.

There are disclosed automatic mixers and methods for creating a surround audio mix. A set of rules may be stored in a rule base. A rule engine may select a subset of the set of rules based, at least in part, on metadata associated with a plurality of stems. A mixing matrix may mix the plurality of stems in accordance with the selected subset of rules to provide three or more output channels.

An electronic device comprising a processing unit arranged to determine an estimation signal (y(k)) based on an input signal (x(k)) and based on a non-stationary reference signal (s.sub.0(k)).

A signal processing method for processing audio signals and in particular for adjusting the tone of music signals is disclosed. The method provides adaptive tonality control. Here, a shape dependent filter magnitude response is calculated, a level dependent filter magnitude response is calculated, a result response is calculated based on the shape and level dependent filter magnitude responses, and an output signal is calculated by convolving an input signal with the result response. In particular, the calculation of the shape dependent filter magnitude response comprises at least the steps of calculating a magnitude spectrum of a signal, filtering the resulting magnitude spectrum using a first smoothing filter, applying a predetermined weighting curve to the spectrum, detrending the weighted spectrum by fitting a curve to said weighted spectrum and subtracting said fitted curve from said weighted spectrum, and inverting the resulting spectrum to form the shape dependent filter magnitude response.